baber/WOPTO huggingface dataset:
Patent GB-1011323-A (GB)
Title: Process for the manufacture of hydrogen cyanide and acetic acid from oximinoacetone
IPC: C07C51/00
Filed: 1962-06-04
Abstract: Hydrogen cyanide and acetic acid are obtained by decomposing oximino-acetone in solution or suspension in a liquid at a temperature within the range from 20-300 DEG  C., preferably in the presence of a catalyst.  Neutral or acid catalysts specified include oxides or mixed oxides of elements of Groups Ia, IIa-IIIa of the Periodic Table, alkali metal or alkaline earth metal hydrogen sulphates, metal oxides of Groups IV to VI of the Periodic Table, silicates and mixed silicates of elements of Groups Ia, IIa and IIIa, kaolinite, montmorillonite, zeolite and ion exchange resins splitting off water. They may be supported on carriers such as silica gel or pumice.  Basic catalysts include inorganic compounds such as sodium carbonate, organic derivatives of NH3, PH3; AsH3, SbH3\t and BiH3, and cyclic tertiary amines such as quinoline, pyridine and their alkyl substitution derivatives of low molecular weight.  A list of suitable solvents is also included.  The process may also be carried out in the presence of dehydrating agents such as carboxylic acid anhydrides, used in stoichiometric amounts based on the oximinoacetone: in these circumstances the decomposition may be carried out in the presence of at least one mol. of water per mol. of oximino-acetone.  The process may be carried out by dissolving the oximino-acetone in a selected solvent, adding the catalyst and heating to reaction temperature, the products being separated by distillation.ALSO:Hydrogen cyanide and acetic acid are obtained by decomposing oximino-acetone in solution or suspension in a liquid at a temperature within the range from 20-300 DEG  C., preferably in the presence of a catalyst.  Neutral or acid catalysts specified include oxides or mixed oxides of elements of Group IA, IIA and IIIA of the Periodic Table, alkali metal or alkaline earth metal hydrogen sulphates, metal oxides of Group IV to VI of the Periodic Table, silicates and mixed silicates of elements of Group IA, IIA and IIIA, kaolinite, montmorillonite, zeolite and ion exchange resins splitting off water.  They may be supported on carriers such as silica gel or pumice.  Basic catalysts include inorganic compounds such as sodium carbonate, organic derivatives of NH3, PH3, AsH3, SbH3 and BiH3, and cyclic tertiary amines such as quinoline, pyridine and their alkyl substitution derivatives of low molecular weight.  A list of suitable solvents is also included.  The process may also be carried out in the presence of dehydrating agents such as carboxylic acid anhydrides, used in stoichiometric amounts based on the oximino-acetone; in these circumstances the decomposition may be carried out in the presence of at least one mol of water per mol of oximino-acetone.  The process may be carried out by dissolving the oximino-acetone in a selected solvent, adding the catalyst and heating to reaction temperature, the products being separated by distillation.
Patent GB-195321-A (GB)
Title: Improvements in devices for closing footballs and the like
IPC: B25B7/02
Filed: 1922-08-05
Abstract: 195,321. Kurr, W. Aug. 5, 1922. Balls.-A tool for closing the covers of footballs &c. after inflation, comprises a pair of tongs whose jaws d', d<2> are formed with flat surfaces a for gripping the bladder neck, and with claws g for drawing the sides of the opening together to facilitate lacing and unlacing. A hasp e pivoted to one handle c<1> is provided for locking the jaws in closed position. A fork b is attached to the free end of the other handle c<2> for inserting the neck of the bladder under the cover.
Patent GB-1519555-A (GB)
Title: Battery connector cover
IPC: H01R11/28
Filed: 1976-05-25
Abstract: 1519555 Covers for terminals LUCAS INDUSTRIES Ltd 27 April 1977 [25 May 1976] 21601/76 Heading H2E A cover 11 for a battery post connector 12 comprises a retaining portion 18 which is engageable as a snap-fit, e.g. by way of a groove 23, with either an electrical head 15 connected to the connector 12 or the connector 12 itself, e.g. a limb 14 thereof, and a housing portion 17 which can receive at least that part 13 of the connector 12 engaging the terminal post and which is hinged to the retaining portion 18 so that it can be moved to expose the connector 12 without disengaging the retaining portion 18. The housing portion 17 may be snap engaged with the connector 12.
Patent GB-132260-A (GB)
Title: Improvements in Flotation Separation of Mineral Substances.
Inventor: PALMER THOMAS HENRY
IPC: B03D1/06
Filed: 1919-09-03
Abstract: 132,260. Palmer, T. H., Seale, H. V., and Nevett, R. D. Sept. 2, 1918, [Convention date]. Treating ores to facilitate concentration.-In sulphidizing ores to render them amenable to concentration by flotation, free sulphur is added to acceleiate the action of the sulphuretted hydrogen or other sulphidizing-agent used. The sulphur may be in the form of a solution in oils, tar, &c.
Patent GB-880859-A (GB)
Title: Method for indicating temperature variations in a refrigerating apparatus
IPC: G01K11/12
Filed: 1960-06-21
Abstract: To indicate when the temperature of refrigerating apparatus has risen above a predetermined critical temperature, a material in solution is used which can be changed from one light absorbing state to another by irradiation by ultra-violet or other light and which remains stable in one of the states only when it is below the critical temperature and which reverts to, and remains in, its other state when the temperature rises above the critical temperature.  Suitable activatable materials are the derivatives of 1, 3, 3-trimethyl-spiro (2H1-11-benzopyran-2, 21-indoline) having the substituents 61-bromo; 71-chloro; 61-chloro; 61, 81-dibromo; 61-methoxy-81-nitro; 51, 61-dinitro; and 61-nitro-81-methoxy, which may be mixed with cellulose butyrate with the aid of a mixture of toluene, ethanol and acetone, and cast or coated to form a film or thicker sheet which becomes solid after evaporation of the evaporable components.  In an example 1% by weight of the 61 methoxy-81-nitro derivative of 1, 3, 3-trimethyl-spiro (21 H-11-benzopyran-2, 21-indoline) is dissolved in a mixture of 750 grams of cellulose butyrate, 750 grams of chlorinated diphenyl (60% chlorine content), 960 grams of toluene, 240 grams of ethanol and 300 grams of acetone, and is applied as a dryable coating or cast into a solid sheet.  Other film-forming sovents for the activatable material are polyvinyl alcohol, polyvinyl acetate, polyvinylmethyl ether maleic anhydride copolymer, polyethylene maleic anhydride copolymer, polyvinyl butyral, polyethylene, ethyl cellulose, and regenerated cellulose. Alternatively, a solution of the activatable material is chlorinated diphenyl may be micro-encapsulated in gelatin and the product applied as an aqueous slurry.ALSO:One per cent, by weight of the 61-methoxy-81-nitro derivative of 1,3,3 trimethyl-spiro (21H-11 benzopyran - 2, 21\h3 - indoline) is dissolved in chlorinated diphenyl of 60%, by weight, chlorine content and micro-encapsulated for use as a temperature indicator in refrigerating-apparatus.  In an example twenty grams of gum arabic is dissolved in 160 grams of water and emulsified with 80 grams of the chlorinated diphenyl solution. This emulsion is mixed with a sol made of 20 grams of pigskin gelatin and 160 grams of water.  The pH of the mixture, which is about 4.5, is adjusted to 5, 500 grams of water is introduced and the pH slowly brought back to 4.5 using 10% acetic acid.  To harden the capsules 3 1/2 grams of 37% formaldehyde in water is added to the mixture with agitation keeping the ingredients at 50 DEG  C.  After gelation, by lowering the temperature to 10 DEG  C., the pH is adjusted to 9 with a 20% solution of sodium hydroxide in water or sodium carbonate.
Patent GB-428125-A (GB)
Title: Improvements in or relating to furnaces for the heat treatment of iron and steel
IPC: H03B11/02
Filed: 1933-08-02
Abstract: 428,125. Metal - heating furnaces. SCHWIER, W., (trading as INGENIEURBURO FUR HUTTENBAU W. SCHWIER), 17, Bismarckstrasse, D³sseldorf, Germany. Aug. 2, 1933, No. 21716. Convention date, March 31. [Class 51 (ii)] A continuous furnace for the heat-treatment of metals is provided with external flues i extending around the working-chamber c transversely to its longitudinal axis each flue being provided with two burner openings 0<1>, 0<2>, through which alternating supplies of gas issue, and with two connections, one adjacent each burner opening, leading to regenerators k<1>, k<2> connected alternately to a source of fresh air supply and to the chimney. Preheating, annealing, quenching, and cooling zones are provided in the furnace.
Patent GB-294389-A (GB)
Title: Improvements in and connected with golf clubs
IPC: A63B53/04
Filed: 1927-08-18
Abstract: 294,389. Carr, F. T. F. Aug. 18, 1927. Golf clubs.-A putter is formed of aluminium and is provided with grooves, corrugations or the like on the striking face E and sole C.
Patent GB-915656-A (GB)
Title: Improvements in or relating to counterpoise devices
Inventor: TOWNDROW PERCY EDWIN
IPC: G01R11/02
Filed: 1960-06-21
Abstract: 915,656. Weighing apparatus. SMITH & SONS (ENGLAND) Ltd., S. June 21, 1961 [June 21, 1960], No. 21762/60. Class 143. [Also in Groups XXXII and XXXVI] A counterpoise device (see Group XXXVI) has a weight movable along an arm of non-circular cross-section ; the weight having the form of a coiled spring 28 whose convolutions are non-circular and of similar cross-section such that when unstressed each convolution is progressively angularly displaced from its neighbours, the spring being compressible so that the convolutions are rotated into alignment to allow passage of the arm and relaxable to firmly grip the arm in any desired position.
Patent GB-812956-A (GB)
Title: Improvements relating to the moulding of bends in pipes or ducts from glass fibre and resin
Inventor: ADAMS ANTHONY BOWER
IPC: B29D23/00
Filed: 1955-07-28
Abstract: 812,956. Moulding pipes from glass fibre and resin. POTTERIES VENTILATING & HEATING CO. Ltd. Oct, 26, 1956 [July 28, 1955], No. 21777/55. Class 87(2). [Also in Group XXVIII]  A pipe bend is formed by lapping glass fibre coated or impregnated with polyester or epoxy resin around an inflatable core C which may be made of rubber wrapped with a polyvinyl chloride or polythene bandage or of polythene or polyvinyl chloride reinforced by nylon or cotton fibres. Metal collars B may be formed integrally with the pipe by mounting them about the core and holding them by connecting strips A.
Patent GB-502174-A (GB)
Title: Locking device for screws and nuts
IPC: F16B35/00
Filed: 1937-08-10
Abstract: 502,174. Locking nuts and screws. HOSKING, R. T. Aug. 10, 1937, No. 22020. [Class 89 (i)] In a locking device for a nut or screw, the surface of the nut or screw which engages the work is provided with arcuate ribs having arcuate cutting edges, material being raised from the work to a position along the sides and at the ends of the ribs in such a way that unlocking of the nut involves displacement of the raised material. In one form, four groups of arcuate ribs are provided, the ribs of alternate groups being displaced radially so that a rib of one group follows between the grooves formed by adjacent ribs of the preceding group. The ribs have inclined V-shaped cutting ends 9. In a modification, the staggered ribs 23, Fig. 7, have surrounding grooves 28 into which the material of the work is forced.
Patent GB-801655-A (GB)
Title: Improvements in or relating to siphons for flushing cisterns
Inventor: REYNOLDS WILLIAM ANTHONY
IPC: E03D1/06
Filed: 1956-07-17
Abstract: 801,655. Siphon-discharged flushing cisterns. GENERAL ELECTRIC CO., Ltd. July 3, 1957 [July 17, 1956], No. 22086/56. Class 26. A siphon for a flushing cistern comprises a U- shaped tubular member of plastic material, e.g., polythene, and is moulded in two parts, one comprising the cylinder 3 and limb 2 and the other the limb 1. Flanges 7, 8 are provided for joining, as by welding, of the two parts, which interlock by means of projections 9, 10 and a toe 12 on the limb 1 engaging in a recess 14 in a thickened part 13 of the cylinder 3, or viceversa. Limb 1 is thickened at its end 4 to incorporate a connecting tube 5, which is the outlet and may be of the same material and formed in one therewith during moulding. Cylinder 3 has an aperture 15 with a brass insert 16, incorporated during moulding, for the piston rod.
Patent GB-416741-A (GB)
Title: New or improved method of supporting and operating sun blinds or awnings
IPC: E04F10/06
Filed: 1933-08-08
Abstract: 416,741. Sunblinds. PAGE, A. C., 46, Victoria Road, Surbiton, Surrey. Aug. 8, 1933, No. 22135. [Class 52 (v).] In sun blinds or awnings of the type having telescopic supporting arms slidable in guides or tracks located in the interior of the building or structure, the inner member A of each telescopic arm, which forms the front portion of the arm when extended, moves out first when extending the blind and when fully extended is automatically locked to the outer member B of the arm immediately the outer member commences to extend. The member B is slidable between rollers d<2> mounted in a guide D pivotally secured to the building at d<3> so that the inclination of the arms can be adjusted. When operating the blind by hand from the outside of the building the tube A is pulled out until its inner end reaches the outer end of the tube B whereupon the tube B commences to move outwards and a spring-pressed lever F mounted at the end of the tube B is released from a slot f<6> in the fixed guide D and its end f<3> takes in a hole in the tube A locking the tubes together. The tube B then moves forwardly in the guide D until a stop b<3> engages the inner end of the guide, a groove b<2> at the inner end of the arm B then engaging one of the rollers d<2>. To close the blind the lath e<1> is lifted to disengage the groove b<2> and the tension in the blind roller R then draws in the arms. When the arm B is completely retracted a bar f<4> fixed to the guide D strikes the locking arm F to release it from the tube A, allowing this tube to be retracted into the tube B, and cause its opposite end f<5> to lock the tube B to the guide D by entering the slot f<6>. Instead of the D being fixed at d<3> it may be freely pivoted and the inner end of the arm B may be provided with a roller running on a track so that the inclination of the blind varies as it is extended. For mechanical operation from within the building a screwed shaft J, Fig. 8, extends through the tube B and is engageable with a nut H<1> in the tube B and a nut H in the inner end of the tube A. The shaft is operated by a bevel wheel K from a main driving shaft j<1>, and from the collapsed position shown the tube A is moved out first, the nut H engaging with the shaft J, and when its forward movement is completed and the tube B has moved forward slightly to release the lever F from the bar f<4> the tubes A and B are locked together. On further outward movement of the tube B the nut H<1> pivoted in the tube B engages with the screwed shaft and the nut H is disengaged so that the tube B completes the forward movement. The tubes may be of rectangular section with strengthening ribs.
Patent GB-149954-A (GB)
Title: Improvements in methods of and apparatus for receiving signals by wireless telegraphy
IPC: H04B1/10
Filed: 1920-07-26
Abstract: 149,954. Hall Research Corporation, (Assignees of Hall, R. E.). Aug. 13, 1919, [Convention date]. Telephonic relays, repeaters, and translators.-In a thermoelectric relay described for use in a wireless receiver, low-frequency impulses in the anode circuit of the heterodyne receiver energize the magnet 10 and cause the resonator 46 to vibrate. A jet of air is normally directed along the axis of the coil 26, which is composed of fine Wollaston wire and connected in series wth the relay 67 and battery B<2>. Air-pulses in the resonator 46 produced by its vibration deflect the jet upon the wire, lowering its temperature and resistance, and causing an increased current to operate the relay 67, which closes its contact at S'. Switches are furnished for including an ammeter 24 and telephone T in the circuit traversing the coil 26, to provide a visual and an aural indication of current variations therein. The relay 67 may be short-circuited by a switch S<2>.
Patent GB-654726-A (GB)
Title: Improvements relating to methods of brass plating metal parts prior to bonding rubber thereto
IPC: C25D5/34
Filed: 1948-08-24
Abstract: 654,726. Electrodeposition of brass. DUNLOP RUBBER CO., Ltd., SEDDON, R. M., and GOULDING, G. H. Aug. 24, 1948, No. 22239. [Class 41] A method of brass-plating prefabricated metal parts to facilitate bonding rubber thereto comprises cleaning the metal parts, heating them at a temperature above the boiling-point of water, cooling the heated parts with water, and subsequently electroplating the parts with brass. The cooling step may be followed by the step of directing a jet of compressed air or steam or water under pressure against the treated surfaces. The parts may be heated by being exposed for 10 to 15 minutes to saturated steam in a steam chest at a temperature of 310‹ to 320‹ F.
Patent GB-328170-A (GB)
Title: Improvements in inflatable hollow rubber bodies
IPC: A63B39/04
Filed: 1929-03-07
Abstract: 328,170. Williams, L. E., and James, G. E. March 7, 1929. Divided on and addition to 328,080. Balls. - An inflating plug for balls, bladders, and other inflatable rubber bodies comprises an outer portion A composed of vulcanized rubber and an inner portion B of less highly vulcanized or unvulcanized rubber, both portions being of substantial thickness. The plug is formed by omitting the accelerator from, and reducing the proportion of accelerator in, the inner portion B. The position of the plug is indicated by a projection E, such a.s is described in Specification 328,047.
Patent GB-1525191-A (GB)
Title: Coal gasification plant
IPC: C10J3/20
Filed: 1976-05-28
Abstract: 1525191 Slagging gasifiers BRITISH GAS CORP 1 March 1977 [28 May 1976] 22297/76 Heading C5E [Also in Division F4] In a slag tap gasifier having a burner 60 located beneath the slag tap orifice for directing a stream of hot combustion products up the orifice to retain the slag and iron in the hearth and to enable tapping of the molten slag by reducing the output of the burner, there is provided a burner ignition system comprising a neat gas nozzle burner located within the quench chamber, a gas supply tube 48 connected to the nozzle burner, and an ignition 44, 45 positioned adjacent the nozzle of the neat gas nozzle burner whereby, on ignition of the nozzle burner, a flame is directed towards the main burner 60 for ignition thereof; the arrangement is such that, in use, the nozzle burner is not contaminated by molten slag dripping from the orifice.
Patent GB-388311-A (GB)
Title: Improvements in and relating to electrically heated soldering irons
IPC: B23K3/03
Filed: 1932-08-09
Abstract: 388,311. Soldering-irons. SACHS, E., 10A, Manteuffelstrasse, Lichterfelde, Berlin. Aug. 9, 1932, No. 22317. [Class 83 (iv).] An electric soldering-iron of the kind in which the heating element is disposed in a metal tube which carries the bit at its free unconstricted end, has the bit secured to the tube by a releasable clamp. The tube 3, which has a sharpened and slotted end so as to prevent rotation of the tube after it is driven into the handle 1, and is provided with a constriction 10 to support the connector 12 and heating element 4, has an unconstricted end to. which the stem 6 of the bit, which passes through the heating element, is secured. The bit may be secured in the tube by a split or divided collar 7 inserted in the tube and clamped to the tube and the bit by means of a screw 9. The collar and bit may be secured in the tube by an external screw-operated clamping band, Fig. 4, the tube being preferably slotted. The upper part of the stem may be equal in diameter to the bore of the tube in which case the bit may be secured by the clamping band without the use of a collar.
Patent GB-443342-A (GB)
Title: Improvements in photographic cameras
IPC: G03B13/20
Filed: 1935-08-07
Abstract: 443,342. Photographic cameras ; finders. DECKEL, F., 7, Waakirchnerstrasse, Munich, Germany. Aug. 7, 1935, No. 22329. [Class 98 (i)] The objective lens anc the view - finder lens of a photographic camera art coupled together for focus ing adjustment and the focusing gear members are associated with lenses so that each lens may be removed and a lens of different focal length sub stituted. Screw threads 6 7 on the mounts of the finder lens 3 and the ob jective lens 4 respectively engage in threaded flanges 5, 8 in the panel 2. A ring 9 mounted in a circular flange on the panel 2 has teeth 10 engaging a gear wheel 11 fixed to the mount of the finder lens. The inside of the ring 9 has two or more grooves 12 into which engage teeth 13 on a ring 14 secured to the objective lens. Grooves 15 in the ring 8 allow the teeth 13 to pass to permit withdrawal of the objective lens for substitution of another lens with similar gear members fixed thereto. Rotation of a milled ring 17 is transmitted through the wheel 11 and ring 9 to the objective lens 4. The alternative lens of longer focus has a screw thread 7 of coarser pitch.
Patent GB-835871-A (GB)
Title: Improvements in or relating to circuit arrangements for converting a first representation of a digit into a second representation
Inventor: DENBY JAMES FREDERICK
IPC: H03K23/82
Filed: 1955-08-04
Abstract: 835,871. Electric selective signalling systems- AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. July 13, 1956 [Aug. 4, 1955], No. 22425/55. Class 40 (1). [Also in Group XXXIX] In a device for converting a representation of a decimal digit by a group of pulses equal in number to the digit represented to a representatiori in which two lines of a group of five lines are marked with a steady D.C. voltage, the pulses representing the digit are applied in succession to a relay coil A (not shown) whose contact A1, Fig. 1, therefore closes and opens once for each pulse, and as a result the pulses are counted on an arrangement of cold-cathode gas discharge tubes, which, upon the application of a " read " pulse HCP, Fig. 2, provide markings on two of five leads AV, AW, AX, AY, AZ, representative of the number of pulses entered. The arrangement of gas discharge tubes comprises three distinct groups of tubes, a first four-stage counting chain having stages PVA, VA, VB; PW, WA; PXA, XA ; and PYA, YA, a second four-stage counting chain having stages WBA, WBB ; PXB. XB ; PYB, YB; and PZ, Z, and a group of eight tubes AV, AWA, AWB, AXA, AXB, AYA, AYB, AZ, one for each stage of both counting chains, which function merely as mixers. In operation the register is first "turned on" by closing a contact B1 which applies the H.T. potential to various tubes, and a positive pulse is applied to a lead SP, Fig. 1, causing tubes STA and WBB to conduct. The digit representing pulses are then applied to relay A and immediately after the return to its normally de-energized position (that is at the end of each digit pulse) a positive pulse is applied to a lead IMP by means not shown. The result of this is that the digit pulses are counted by the two counting chains. At the end of a digit period a pulse HCP, Fig. 2, is applied which causes two of the five output leads to be marked. The register is zeroized prior to the entry of a further digit by a pulse on a line SO.